v3.26.1
Debt (Major Components Of Debt) (Details) - USD ($)
6 Months Ended
Mar. 28, 2026
Feb. 20, 2026
Sep. 27, 2025
Debt Instrument [Line Items]      
Document Period End Date Mar. 28, 2026    
Finance Lease, Liability $ 173,000,000   $ 168,000,000
Discount on senior notes (34,000,000)   (34,000,000)
Other 235,000,000   251,000,000
Unamortized debt issuance costs (41,000,000)   (40,000,000)
Total debt 8,083,000,000   8,830,000,000
Less current debt 141,000,000   909,000,000
Less current debt 7,942,000,000   7,921,000,000
Revolving Credit Facility [Member]      
Debt Instrument [Line Items]      
Revolving credit facility 0   0
Commercial paper      
Debt Instrument [Line Items]      
Commercial paper 30,000,000   0
us-gaap_RevolvingTermLoanCreditFacilityMember      
Debt Instrument [Line Items]      
Revolving credit facility $ 0   0
4.00% Notes due March 2026 (“2026 Notes”)      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.00%    
Long-term Debt, Gross $ 0   800,000,000
3.55% Notes due June 2027      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 3.55%    
Long-term Debt, Gross $ 1,350,000,000   1,350,000,000
7.00% Notes due January 2028      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 7.00%    
Long-term Debt, Gross $ 18,000,000   18,000,000
4.35% Notes due March 2029 (“2029 Notes”)      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.35%    
Long-term Debt, Gross $ 1,000,000,000   1,000,000,000
6.13% Notes due November 2032      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.13%    
Long-term Debt, Gross $ 157,000,000   157,000,000
4.88% Notes due August 2034      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.88%    
Long-term Debt, Gross $ 500,000,000   500,000,000
5.15% Notes due August 2044      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.15%    
Long-term Debt, Gross $ 497,000,000   497,000,000
4.55% Notes due June 2047      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.55%    
Long-term Debt, Gross $ 713,000,000   733,000,000
5.10% Notes due September 2048 (“2048 Notes”)      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.10%    
Long-term Debt, Gross $ 1,485,000,000   1,490,000,000
Term Loan Facility Due May 2028      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 6.18%    
Long-term Debt, Gross $ 0   440,000,000
Five Point Four Zero Percentage Senior Notes Due March, Two Thousand and Twenty Nine      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.40%    
Long-term Debt, Gross $ 600,000,000   600,000,000
Five Point Seven Zero Percentage Senior Unsecured Notes Due March, Two Thousand and Thirty Four      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 5.70%    
Long-term Debt, Gross $ 900,000,000   900,000,000
Four Point Nine Five Percentage Senior Unsecured Notes Due August, Two Thousand and Thirty Six      
Debt Instrument [Line Items]      
Debt Instrument, Interest Rate, Stated Percentage 4.95%    
Long-term Debt, Gross $ 500,000,000 $ 500,000,000 $ 0
Discount on senior notes   $ (2,000,000)